Restatement (Details 2) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)	[1]	$ 74	$ (5)
Comprehensive income (loss)	[1]	(18)	5
As Originally Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Net income (loss)		89	11
Comprehensive income (loss)		$ (3)	$ 21

[1] Restated